When a man is having vaginal intercourse with a woman and accidentally slips out of the vaginal opening and into the anus of the woman, and then back into the vagina.
I had a slippy double dippy with my girl last night, but I think she liked it.
v. 1) Dipping twice into any kind of salsa, dip substance, ect after already taking a bite from a chip or other food object.
2) A sexual encounter involving both biting or nibbling, while engaging in humping or lunging on another individual.
In the film Bram Stoker's Dracula there is a scene where the monster (wolf-man) Dracula is having sex with Mina Harken's red-headed girlfriend, while biting her. Dracula's sexual moves are double-dipping, which for him involves the drinking of one's blood, while having sex with them.
When you stuff your cock so hard into a sloot that you bust nut too quick. But you were going to eat her asshole out (like a KFC NUTTY CRUNCH), so you have to commit to tongue-punching her sphincter although you've already tainted her hole. You land up double-dipping bodily fluids inside her hole - being your saliva and cum.
Chris please don't stop licking out my snowy jizz-filled asshole, you naughty little double-dipping cunt-wad.